Moisture condenser for compressed air



Sep?. 24, 1935. 1 1 ROSEN 2,@1523@ MOISTURE CONDENSER FOR COMPRESSED AIROriginal Filed Feb. 24, 1931 /r 1 K I, Ww

l (/05. u. FUSE/v lwwmto wr-m l E TIE-E l v Patented Sept. 24, 1935 ENTOFFICE MOISTURE CONDENSER FOR COMPRESSED AIR Joseph J. Rosen, Davenport,Iowa Substitute for application Serial No.'5l7,906, February 24, 1931.This application July 15, 1935,

Serial No. 31,448

4 Claims.

The present invention relates to mechanism for removing the water fromthe compressed air used in-connection with air hammers, which are drivenl, by compressed air, and includes among the objects thereof to providea means for taking out of the air enough moisture so that the operationof the air hammer will not be interfered with by the presence of waterVin the hammer; to provide an improved mechanism for the accomplishmentof the purpose stated; to provide in the air line of an air hammermechanism for trapping moisture carried along by the air and collectingthe same before theair is delivered to the ham- 1 mer; to provide ameans for the purpose indicated l5 which will have means whereby thecollected moisture may be withdrawn from time to time as may benecessary; and such further objects, advantages, and capabilities aswill hereafter appear and as are inherent in the construction disclosedherein. My invention further resides in the combination, construction,and arrangement of parts illustrated in the accompanying drawing and,while I have shown therein what is now considered the preferredembodiment of this invention, I desire the same to be understood asillustrative only and not to be construed in a limiting sense.

In the drawing annexed hereto and forming a part hereof,

Fig. 1 shows my improved device in elevation and in longitudinalsection, in association with a source of compressed air and with an airhammer;

Fig. 2 shows a longitudinal section of a single device of the type shownin Fig. 1 which has been found to be quite effective for the purpose forwhich this device is intended;

Fig. 3 shows a plan View of one of a series of plates used as acondensing means for the moisture of the air passing through the device.

Referring more in detail to the annexed drawing, a source of compressedair is denoted generally by the numeral I and is shown in dotted outlinewhile the air hammer 2 and its pipe 3 connecting it to the moisture trapare likewise shown in dotted lines. My improved trap 4 comprises one ormore tubular members 5 provided with closure elements 6 and 'I whichclose the ends of the tubular members. As disclosed in my priorapplication Serial No. 433,095, led March 22,

1930, these closure members consisted of caps which were eitherconnected to the tubular members 5 by screw threading or were brazed orotherwise attached thereto. I have found that it is simpler and lessexpensive to cut out discs 5 to be adjusted inside of the members 5 andthen weld or braze these in place, as illustrated in Figs. 1 and 2. Allthat is necessary is that these closure members shall be secured inair-tight relation to the members 5 so that there shall be no leakage Yof the compressed air from the condensing cham- V 5 bers. The bottomclosures or caps 'I are provided with drain cocks 8 by means of whichmoisture collected in the lower end of the device may be drawn off, asnecessary. Leading into the interior of the trap, preferably through the1'0 upper closure member Ei, is a tube 9 which extends downwardly somedistance, being illustrated in the drawing as extending abouttwo-thirdsway towards the bottom of the trap. Mounted upon the pipe areplates i0 which are provided with 15 openings i i thro-ugh which the airmay pass on its.l way from the tank I to the air hammer 2. Theseopenings are illustrated as being circular in form, but it will beunderstood that no particular shape is necessary as slots of variousforms or other 20 shaped figures might be used in place of the circularopenings II illustrated in Fig. 3. It should perhaps be commented thatthe plates or discs I0 are preferably rigidly secured to the pipe 0 forease in assembly and that when as- 25' sembled in the tubular member 5they are spaced slightly away from said member, throughout the entireinterior thereof, thus permitting the air to pass upwardly between theedges of the plates and the wall of the tubular member 5. 30

As illustrated in Figs 1 and 2, an upwardly concave baiiie I2 may bemounted in the tubular member 5 at a point slightly below where the endof tube 0 will be. This member is provided around its central openingwith a downwardly extending 35 iiange I3 which assists in forming a trapbelow member IZ to prevent water collecting in the botto-m of thischamber from being blown upwardly by the air rushing through the pipe 9`and striking the surface of the collected Water. 40 This watercondenses orr the baffle plates I0 and runs down to the member I2 andtoward the center thereof to be discharged through the opening thereininto the lower part of the tubular member. 45 As indicated in Fig. 1,this trap I may comprise a` pair of tubular members 5, which may beeither identical or dissimilar. In this figure, one of these members isshown as being provided with the baffle I 2 while the other one is shownas being 50 without this. The construction illustrated in my priorapplication, Serial Number 438,095, above identified, was not providedwith any member I2 and the two trap members were identical. It has beenfound in actual practice that the addition of member I2 makes itpractically unnecessary to use two trap members in series, as thestructure shown in Fig. 2 is sufficient to remove the larger part of the-moisture from the air being delivered by the compression tank. Whilethe construction illustrated in Fig. 2 is believed to be entirelyadequate for the removal of the moisture contained in the air, I do notwish to be limited to the use of a single trap member and, therefore,have illustrated in Fig. 1 the use of two of them. A system of piping I4connects the top of the rst member to the lower part of the secondmember, thus insuring that the air delivered from the rst member to thesecond one will pass upwardly through and around the baffle plates I0.Whenever it is thought desirable to remove the water collected in thetrap, this may be done by opening the cock 8 and permitting the airdelivered under pressure from the tank I to blow the moisture out. Itwill be appreciated that this will happen very quickly under such apressure as is used in operating air hammers.

While I have disclosed my invention as being used in connection with anair hammer, I desire it understood that it may have other uses also andtherefore that it is not to be construed as being limited in its utilityto the use disclosed. It is of course understood that the specicdescription of structure set forth above may be departed from withoutdeparting from the spirit of my invention as set forth in thisspecication and the appended claims.

This application is a substitute for my abandoned application SerialNumber 517,906 led Feb. 24, 1931.

Having now disclosed my invention, I claim:

l. In a structure of the general nature indicated for use in combinationwith a compressed air reservoir and an air hammer, a tubular memberhaving an air admission pipe extending through one end thereof anddelivering cornpressed air from the reservoir to the other end of thetubular member, a pipe leading from the end of the tubular memberopposite that to which the compressed air is delivered, said pipeextending into another tubular member and carrying air from the rstmember to the second one, a pipe carrying air from a part of the secondtubular member which is remote from the point of delivery of airthereto, and bale means within said tubular members and mounted thereinso that the air may circulate between the edges of the bafes and theinterior walls of the tubular members,

said bailles having perforations therethrough for the passage of air inits course of travel from the tank to the air hammer, and means forwithdrawing from the tubular members any water condenser therein.

2. A device of the character described for use in combination with asource of supply of air under pressure and a means for utilizing saidcompressed air, said device including a tubular member having baffleplates mounted therein, 10

means for admitting compressed air to one end of the tubular member,means for withdrawing said compressed air from the opposite end of saidmember, after the air has passed through and around said plates, and aguard plate mounted in l5 said tubular member beyond the bale plates andhaving an aperture therethrough in alignment with the means carrying thecompressed air from the source thereof into said member.

3. A structure for the purpose indicated comprising a tubular memberhaving its ends closed against the escape of air therefrom, .a guardmounted in said container between its middle and one-end, a tubularmember leading into said rst named tubular member and having itsdischarge end in the vicinity of the guard plate, said guard platehaving an aperture therethrough in substantial alignment with the secondmentioned tubular member, said guard plate having a ange around itsaperture directed away from the second extending therethrough and to thevicinity of the middle of said tubular member, barile plates mountedupon said pipe, secured thereto, and spaced from said tubular member adistance such that the assembled pipe and bailie plates may be insertedinto said tubular member freely, means for delivering compressed airinto said pipe, means for withdrawing compressed air from said tubularmember, and means at the opposite end of the tubular member from thewithdrawing means for removing water collected in said tubular member.

JOSEPH J. ROSEN.

